Numerical simulation analysis and experimental validation on wear/fracture mechanisms of polycrystalline cubic boron nitride superabrasives in high-speed grinding

2019 ◽  
Vol 45 (3) ◽  
pp. 3377-3389 ◽  
Author(s):  
Zhiwen Rao ◽  
Wenfeng Ding ◽  
Yejun Zhu ◽  
Jiuhua Xu
Keyword(s):  
Numerical Simulation ◽  
Boron Nitride ◽  
High Speed ◽  
Experimental Validation ◽  
Simulation Analysis ◽  
Cubic Boron Nitride ◽  
Fracture Mechanisms ◽  
Polycrystalline Cubic Boron Nitride ◽  
High Speed Grinding

scholarly journals Experimental study of single cubic boron nitride grains in the ultrasound-assisted high-speed grinding

2017 ◽  
Vol 9 (2) ◽  
pp. 168781401769354 ◽  
Author(s):  
Dao-hui Xiang ◽  
Zhong-yun Liu ◽  
Zhi-kun Zhou ◽  
Yun-long Yao
Keyword(s):  
Experimental Study ◽  
Boron Nitride ◽  
Surface Quality ◽  
High Speed ◽  
Cubic Boron Nitride ◽  
Grinding Force ◽  
Abrasive Particles ◽  
Ultrasonic Assisted ◽  
High Speed Grinding

The kinematic characteristics, grinding force, surface quality of workpiece surface, and wear of abrasive particles were studied by theoretical analysis and experimental study on the single cubic boron nitride abrasive particles under ultrasonic-assisted high-speed grinding. Under the condition of the same grinding parameters, the motion characteristics and the grinding forces of the two machining modes of general grinding and ultrasonic-assisted grinding are compared and analyzed. Research shows that the ultrasonic vibration is applied in the common external circular grinding on grinding particle movement characteristics changed obviously, grinding particle trajectory of variable length, cutting groove width wider, thereby improving the grinding efficiency and the grinding removal rate; ultrasonic assisted under high speed grinding, the grinding force is higher than that of common grinding force is small, efficiency of grinding under ultrasonic processing mode is much higher than ordinary grinding, the surface quality of the workpiece has improved markedly.

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